2 * Copyright (C) 2014 Robin Gareus <robin@gareus.org>
3 * Copyright (C) 2013 Paul Davis
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 /* use an additional midi message parser
23 * coreaudio does packetize midi. every packet includes a timestamp.
24 * With any real midi-device with a phyical layer
25 * 1 packet = 1 event (no concurrent events are possible on a cable)
27 * Howver, some USB-midi keyboards manage to send concurrent events
28 * which end up in the same packet (eg. 6 byte message: 2 note-on).
30 * An additional parser is needed to separate them
32 #define USE_MIDI_PARSER
41 #include "coreaudio_backend.h"
42 #include "rt_thread.h"
44 #include "pbd/compose.h"
45 #include "pbd/error.h"
46 #include "pbd/file_utils.h"
47 #include "ardour/filesystem_paths.h"
48 #include "ardour/port_manager.h"
51 using namespace ARDOUR;
53 static std::string s_instance_name;
54 size_t CoreAudioBackend::_max_buffer_size = 8192;
55 std::vector<std::string> CoreAudioBackend::_midi_options;
56 std::vector<AudioBackend::DeviceStatus> CoreAudioBackend::_duplex_audio_device_status;
57 std::vector<AudioBackend::DeviceStatus> CoreAudioBackend::_input_audio_device_status;
58 std::vector<AudioBackend::DeviceStatus> CoreAudioBackend::_output_audio_device_status;
61 /* static class instance access */
62 static void hw_changed_callback_ptr (void *arg)
64 CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
65 d->hw_changed_callback();
68 static void error_callback_ptr (void *arg)
70 CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
74 static void xrun_callback_ptr (void *arg)
76 CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
80 static void buffer_size_callback_ptr (void *arg)
82 CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
83 d->buffer_size_callback();
86 static void sample_rate_callback_ptr (void *arg)
88 CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
89 d->sample_rate_callback();
92 static void midi_port_change (void *arg)
94 CoreAudioBackend *d = static_cast<CoreAudioBackend *>(arg);
95 d->coremidi_rediscover ();
99 CoreAudioBackend::CoreAudioBackend (AudioEngine& e, AudioBackendInfo& info)
100 : AudioBackend (e, info)
104 , _freewheeling (false)
106 , _freewheel_ack (false)
107 , _reinit_thread_callback (false)
108 , _measure_latency (false)
109 , _last_process_start (0)
110 , _input_audio_device("")
111 , _output_audio_device("")
112 , _midi_driver_option(get_standard_device_name(DeviceNone))
113 , _samplerate (48000)
114 , _samples_per_period (1024)
117 , _systemic_audio_input_latency (0)
118 , _systemic_audio_output_latency (0)
120 , _processed_samples (0)
121 , _port_change_flag (false)
122 #ifdef USE_MIDI_PARSER
123 , _unbuffered_bytes(0)
130 _instance_name = s_instance_name;
131 pthread_mutex_init (&_port_callback_mutex, 0);
132 pthread_mutex_init (&_process_callback_mutex, 0);
133 pthread_mutex_init (&_freewheel_mutex, 0);
134 pthread_cond_init (&_freewheel_signal, 0);
136 _pcmio = new CoreAudioPCM ();
137 _midiio = new CoreMidiIo ();
139 _pcmio->set_hw_changed_callback (hw_changed_callback_ptr, this);
143 CoreAudioBackend::~CoreAudioBackend ()
145 delete _pcmio; _pcmio = 0;
146 delete _midiio; _midiio = 0;
147 pthread_mutex_destroy (&_port_callback_mutex);
148 pthread_mutex_destroy (&_process_callback_mutex);
149 pthread_mutex_destroy (&_freewheel_mutex);
150 pthread_cond_destroy (&_freewheel_signal);
153 /* AUDIOBACKEND API */
156 CoreAudioBackend::name () const
158 return X_("CoreAudio");
162 CoreAudioBackend::is_realtime () const
167 std::vector<AudioBackend::DeviceStatus>
168 CoreAudioBackend::enumerate_devices () const
170 _duplex_audio_device_status.clear();
171 std::map<size_t, std::string> devices;
172 _pcmio->duplex_device_list(devices);
174 for (std::map<size_t, std::string>::const_iterator i = devices.begin (); i != devices.end(); ++i) {
175 if (_input_audio_device == "") _input_audio_device = i->second;
176 if (_output_audio_device == "") _output_audio_device = i->second;
177 _duplex_audio_device_status.push_back (DeviceStatus (i->second, true));
179 return _duplex_audio_device_status;
182 std::vector<AudioBackend::DeviceStatus>
183 CoreAudioBackend::enumerate_input_devices () const
185 _input_audio_device_status.clear();
186 std::map<size_t, std::string> devices;
187 _pcmio->input_device_list(devices);
189 _input_audio_device_status.push_back (DeviceStatus (get_standard_device_name(DeviceNone), true));
190 for (std::map<size_t, std::string>::const_iterator i = devices.begin (); i != devices.end(); ++i) {
191 if (_input_audio_device == "") _input_audio_device = i->second;
192 _input_audio_device_status.push_back (DeviceStatus (i->second, true));
194 return _input_audio_device_status;
198 std::vector<AudioBackend::DeviceStatus>
199 CoreAudioBackend::enumerate_output_devices () const
201 _output_audio_device_status.clear();
202 std::map<size_t, std::string> devices;
203 _pcmio->output_device_list(devices);
205 _output_audio_device_status.push_back (DeviceStatus (get_standard_device_name(DeviceNone), true));
206 for (std::map<size_t, std::string>::const_iterator i = devices.begin (); i != devices.end(); ++i) {
207 if (_output_audio_device == "") _output_audio_device = i->second;
208 _output_audio_device_status.push_back (DeviceStatus (i->second, true));
210 return _output_audio_device_status;
214 CoreAudioBackend::available_sample_rates (const std::string& device) const
216 std::vector<float> sr;
217 _pcmio->available_sample_rates (name_to_id (device), sr);
222 CoreAudioBackend::available_sample_rates2 (const std::string& input_device, const std::string& output_device) const
224 std::vector<float> sr;
225 std::vector<float> sr_in;
226 std::vector<float> sr_out;
228 const uint32_t inp = name_to_id (input_device);
229 const uint32_t out = name_to_id (output_device);
231 if (inp == UINT32_MAX && out == UINT32_MAX) {
233 } else if (inp == UINT32_MAX) {
234 _pcmio->available_sample_rates (out, sr_out);
236 } else if (out == UINT32_MAX) {
237 _pcmio->available_sample_rates (inp, sr_in);
240 _pcmio->available_sample_rates (inp, sr_in);
241 _pcmio->available_sample_rates (out, sr_out);
242 // TODO allow to use different SR per device, tweak aggregate
243 std::set_intersection (sr_in.begin(), sr_in.end(), sr_out.begin(), sr_out.end(), std::back_inserter(sr));
248 std::vector<uint32_t>
249 CoreAudioBackend::available_buffer_sizes (const std::string& device) const
251 std::vector<uint32_t> bs;
252 _pcmio->available_buffer_sizes (name_to_id (device), bs);
256 std::vector<uint32_t>
257 CoreAudioBackend::available_buffer_sizes2 (const std::string& input_device, const std::string& output_device) const
259 std::vector<uint32_t> bs;
260 std::vector<uint32_t> bs_in;
261 std::vector<uint32_t> bs_out;
262 const uint32_t inp = name_to_id (input_device);
263 const uint32_t out = name_to_id (output_device);
264 if (inp == UINT32_MAX && out == UINT32_MAX) {
266 } else if (inp == UINT32_MAX) {
267 _pcmio->available_buffer_sizes (out, bs_out);
269 } else if (out == UINT32_MAX) {
270 _pcmio->available_buffer_sizes (inp, bs_in);
273 _pcmio->available_buffer_sizes (inp, bs_in);
274 _pcmio->available_buffer_sizes (out, bs_out);
275 std::set_intersection (bs_in.begin(), bs_in.end(), bs_out.begin(), bs_out.end(), std::back_inserter(bs));
281 CoreAudioBackend::available_input_channel_count (const std::string&) const
283 return 128; // TODO query current device
287 CoreAudioBackend::available_output_channel_count (const std::string&) const
289 return 128; // TODO query current device
293 CoreAudioBackend::can_change_sample_rate_when_running () const
299 CoreAudioBackend::can_change_buffer_size_when_running () const
305 CoreAudioBackend::set_device_name (const std::string& d)
308 rv |= set_input_device_name (d);
309 rv |= set_output_device_name (d);
314 CoreAudioBackend::set_input_device_name (const std::string& d)
316 _input_audio_device = d;
317 const float sr = _pcmio->current_sample_rate(name_to_id(_input_audio_device));
318 if (sr > 0) { set_sample_rate(sr); }
323 CoreAudioBackend::set_output_device_name (const std::string& d)
325 _output_audio_device = d;
327 const float sr = _pcmio->current_sample_rate(name_to_id(_output_audio_device));
328 if (sr > 0) { set_sample_rate(sr); }
333 CoreAudioBackend::set_sample_rate (float sr)
335 std::vector<float> srs = available_sample_rates2 (_input_audio_device, _output_audio_device);
336 if (std::find(srs.begin(), srs.end(), sr) == srs.end()) {
340 engine.sample_rate_change (sr);
345 CoreAudioBackend::set_buffer_size (uint32_t bs)
347 if (bs <= 0 || bs >= _max_buffer_size) {
350 _samples_per_period = bs;
351 _pcmio->set_samples_per_period(bs);
352 engine.buffer_size_change (bs);
357 CoreAudioBackend::set_interleaved (bool yn)
359 if (!yn) { return 0; }
364 CoreAudioBackend::set_input_channels (uint32_t cc)
371 CoreAudioBackend::set_output_channels (uint32_t cc)
378 CoreAudioBackend::set_systemic_input_latency (uint32_t sl)
380 _systemic_audio_input_latency = sl;
385 CoreAudioBackend::set_systemic_output_latency (uint32_t sl)
387 _systemic_audio_output_latency = sl;
391 /* Retrieving parameters */
393 CoreAudioBackend::device_name () const
399 CoreAudioBackend::input_device_name () const
401 return _input_audio_device;
405 CoreAudioBackend::output_device_name () const
407 return _output_audio_device;
411 CoreAudioBackend::sample_rate () const
417 CoreAudioBackend::buffer_size () const
419 return _samples_per_period;
423 CoreAudioBackend::interleaved () const
429 CoreAudioBackend::input_channels () const
435 CoreAudioBackend::output_channels () const
441 CoreAudioBackend::systemic_input_latency () const
443 return _systemic_audio_input_latency;
447 CoreAudioBackend::systemic_output_latency () const
449 return _systemic_audio_output_latency;
454 std::vector<std::string>
455 CoreAudioBackend::enumerate_midi_options () const
457 if (_midi_options.empty()) {
458 _midi_options.push_back (_("CoreMidi"));
459 _midi_options.push_back (get_standard_device_name(DeviceNone));
461 return _midi_options;
465 CoreAudioBackend::set_midi_option (const std::string& opt)
467 if (opt != get_standard_device_name(DeviceNone) && opt != _("CoreMidi")) {
470 _midi_driver_option = opt;
475 CoreAudioBackend::midi_option () const
477 return _midi_driver_option;
481 CoreAudioBackend::launch_control_app ()
483 if (name_to_id (_input_audio_device) != UINT32_MAX) {
484 _pcmio->launch_control_app(name_to_id(_input_audio_device));
486 if (name_to_id (_output_audio_device) != UINT32_MAX) {
487 _pcmio->launch_control_app(name_to_id(_output_audio_device));
493 static void * pthread_freewheel (void *arg)
495 CoreAudioBackend *d = static_cast<CoreAudioBackend *>(arg);
496 d->freewheel_thread ();
501 static int process_callback_ptr (void *arg, const uint32_t n_samples, const uint64_t host_time)
503 CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
504 return d->process_callback(n_samples, host_time);
508 CoreAudioBackend::_start (bool for_latency_measurement)
510 if ((!_active_ca || !_active_fw) && _run) {
511 // recover from 'halted', reap threads
515 if (_active_ca || _active_fw || _run) {
516 PBD::error << _("CoreAudioBackend: already active.") << endmsg;
521 PBD::warning << _("CoreAudioBackend: recovering from unclean shutdown, port registry is not empty.") << endmsg;
522 _system_inputs.clear();
523 _system_outputs.clear();
524 _system_midi_in.clear();
525 _system_midi_out.clear();
529 uint32_t device1 = name_to_id(_input_audio_device);
530 uint32_t device2 = name_to_id(_output_audio_device);
532 assert(_active_ca == false);
533 assert(_active_fw == false);
535 _freewheel_ack = false;
536 _reinit_thread_callback = true;
537 _last_process_start = 0;
539 _pcmio->set_error_callback (error_callback_ptr, this);
540 _pcmio->set_buffer_size_callback (buffer_size_callback_ptr, this);
541 _pcmio->set_sample_rate_callback (sample_rate_callback_ptr, this);
543 _pcmio->pcm_start (device1, device2, _samplerate, _samples_per_period, process_callback_ptr, this);
544 printf("STATE: %d\n", _pcmio->state ());
546 switch (_pcmio->state ()) {
547 case 0: /* OK */ break;
548 case -1: PBD::error << _("CoreAudioBackend: failed to open device.") << endmsg; break;
549 default: PBD::error << _("CoreAudioBackend: initialization failed.") << endmsg; break;
551 if (_pcmio->state ()) {
555 if (_n_outputs != _pcmio->n_playback_channels ()) {
556 if (_n_outputs == 0) {
557 _n_outputs = _pcmio->n_playback_channels ();
559 _n_outputs = std::min (_n_outputs, _pcmio->n_playback_channels ());
561 PBD::info << _("CoreAudioBackend: adjusted output channel count to match device.") << endmsg;
564 if (_n_inputs != _pcmio->n_capture_channels ()) {
565 if (_n_inputs == 0) {
566 _n_inputs = _pcmio->n_capture_channels ();
568 _n_inputs = std::min (_n_inputs, _pcmio->n_capture_channels ());
570 PBD::info << _("CoreAudioBackend: adjusted input channel count to match device.") << endmsg;
573 if (_pcmio->samples_per_period() != _samples_per_period) {
574 _samples_per_period = _pcmio->samples_per_period();
575 PBD::warning << _("CoreAudioBackend: samples per period does not match.") << endmsg;
578 if (_pcmio->sample_rate() != _samplerate) {
579 _samplerate = _pcmio->sample_rate();
580 engine.sample_rate_change (_samplerate);
581 PBD::warning << _("CoreAudioBackend: sample rate does not match.") << endmsg;
584 _measure_latency = for_latency_measurement;
588 _port_change_flag = false;
590 if (_midi_driver_option == _("CoreMidi")) {
591 _midiio->set_enabled(true);
592 _midiio->set_port_changed_callback(midi_port_change, this);
593 _midiio->start(); // triggers port discovery, callback coremidi_rediscover()
596 if (register_system_audio_ports()) {
597 PBD::error << _("CoreAudioBackend: failed to register system ports.") << endmsg;
602 engine.sample_rate_change (_samplerate);
603 engine.buffer_size_change (_samples_per_period);
605 if (engine.reestablish_ports ()) {
606 PBD::error << _("CoreAudioBackend: Could not re-establish ports.") << endmsg;
611 if (pthread_create (&_freeewheel_thread, NULL, pthread_freewheel, this))
613 PBD::error << _("CoreAudioBackend: failed to create process thread.") << endmsg;
614 delete _pcmio; _pcmio = 0;
620 while ((!_active_ca || !_active_fw) && --timeout > 0) { Glib::usleep (1000); }
623 PBD::error << _("CoreAudioBackend: failed to start.") << endmsg;
627 PBD::error << _("CoreAudioBackend: failed to start freewheeling thread.") << endmsg;
637 PBD::error << _("CoreAudioBackend: failed to start coreaudio.") << endmsg;
643 engine.reconnect_ports ();
645 // force an initial registration_callback() & latency re-compute
646 _port_change_flag = true;
650 _pcmio->set_xrun_callback (xrun_callback_ptr, this);
657 CoreAudioBackend::stop ()
666 _midiio->set_port_changed_callback(NULL, NULL);
669 pthread_mutex_lock (&_freewheel_mutex);
670 pthread_cond_signal (&_freewheel_signal);
671 pthread_mutex_unlock (&_freewheel_mutex);
673 if (pthread_join (_freeewheel_thread, &status)) {
674 PBD::error << _("CoreAudioBackend: failed to terminate.") << endmsg;
681 _active_fw = false; // ??
687 CoreAudioBackend::freewheel (bool onoff)
689 if (onoff == _freewheeling) {
692 _freewheeling = onoff;
693 // wake up freewheeling thread
694 if (0 == pthread_mutex_trylock (&_freewheel_mutex)) {
695 pthread_cond_signal (&_freewheel_signal);
696 pthread_mutex_unlock (&_freewheel_mutex);
702 CoreAudioBackend::dsp_load () const
704 return std::min(100.f, 100.f * _dsp_load);
708 CoreAudioBackend::raw_buffer_size (DataType t)
711 case DataType::AUDIO:
712 return _samples_per_period * sizeof(Sample);
714 return _max_buffer_size; // XXX not really limited
721 CoreAudioBackend::sample_time ()
723 return _processed_samples;
727 CoreAudioBackend::sample_time_at_cycle_start ()
729 return _processed_samples;
733 CoreAudioBackend::samples_since_cycle_start ()
735 if (!_active_ca || !_run || _freewheeling || _freewheel) {
738 if (_last_process_start == 0) {
742 const uint64_t now = AudioGetCurrentHostTime ();
743 const int64_t elapsed_time_ns = AudioConvertHostTimeToNanos(now - _last_process_start);
744 return std::max((pframes_t)0, (pframes_t)rint(1e-9 * elapsed_time_ns * _samplerate));
748 CoreAudioBackend::name_to_id(std::string device_name) const {
749 uint32_t device_id = UINT32_MAX;
750 std::map<size_t, std::string> devices;
751 _pcmio->device_list(devices);
753 for (std::map<size_t, std::string>::const_iterator i = devices.begin (); i != devices.end(); ++i) {
754 if (i->second == device_name) {
755 device_id = i->first;
763 CoreAudioBackend::coreaudio_process_thread (void *arg)
765 ThreadData* td = reinterpret_cast<ThreadData*> (arg);
766 boost::function<void ()> f = td->f;
773 CoreAudioBackend::create_process_thread (boost::function<void()> func)
777 size_t stacksize = 100000;
779 ThreadData* td = new ThreadData (this, func, stacksize);
781 if (_realtime_pthread_create (SCHED_FIFO, -21, stacksize,
782 &thread_id, coreaudio_process_thread, td)) {
783 pthread_attr_init (&attr);
784 pthread_attr_setstacksize (&attr, stacksize);
785 if (pthread_create (&thread_id, &attr, coreaudio_process_thread, td)) {
786 PBD::error << _("AudioEngine: cannot create process thread.") << endmsg;
787 pthread_attr_destroy (&attr);
790 pthread_attr_destroy (&attr);
793 _threads.push_back (thread_id);
798 CoreAudioBackend::join_process_threads ()
802 for (std::vector<pthread_t>::const_iterator i = _threads.begin (); i != _threads.end (); ++i)
805 if (pthread_join (*i, &status)) {
806 PBD::error << _("AudioEngine: cannot terminate process thread.") << endmsg;
815 CoreAudioBackend::in_process_thread ()
817 if (pthread_equal (_main_thread, pthread_self()) != 0) {
821 for (std::vector<pthread_t>::const_iterator i = _threads.begin (); i != _threads.end (); ++i)
823 if (pthread_equal (*i, pthread_self ()) != 0) {
831 CoreAudioBackend::process_thread_count ()
833 return _threads.size ();
837 CoreAudioBackend::update_latencies ()
839 // trigger latency callback in RT thread (locked graph)
840 port_connect_add_remove_callback();
846 CoreAudioBackend::private_handle () const
852 CoreAudioBackend::my_name () const
854 return _instance_name;
858 CoreAudioBackend::available () const
860 return _run && _active_fw && _active_ca;
864 CoreAudioBackend::port_name_size () const
870 CoreAudioBackend::set_port_name (PortEngine::PortHandle port, const std::string& name)
872 if (!valid_port (port)) {
873 PBD::warning << _("CoreAudioBackend::set_port_name: Invalid Port(s)") << endmsg;
876 return static_cast<CoreBackendPort*>(port)->set_name (_instance_name + ":" + name);
880 CoreAudioBackend::get_port_name (PortEngine::PortHandle port) const
882 if (!valid_port (port)) {
883 PBD::warning << _("CoreAudioBackend::get_port_name: Invalid Port(s)") << endmsg;
884 return std::string ();
886 return static_cast<CoreBackendPort*>(port)->name ();
890 CoreAudioBackend::get_port_property (PortHandle port, const std::string& key, std::string& value, std::string& type) const
892 if (!valid_port (port)) {
893 PBD::warning << _("CoreAudioBackend::get_port_name: Invalid Port(s)") << endmsg;
896 if (key == "http://jackaudio.org/metadata/pretty-name") {
898 value = static_cast<CoreBackendPort*>(port)->pretty_name ();
899 if (!value.empty()) {
906 PortEngine::PortHandle
907 CoreAudioBackend::get_port_by_name (const std::string& name) const
909 PortHandle port = (PortHandle) find_port (name);
914 CoreAudioBackend::get_ports (
915 const std::string& port_name_pattern,
916 DataType type, PortFlags flags,
917 std::vector<std::string>& port_names) const
921 bool use_regexp = false;
922 if (port_name_pattern.size () > 0) {
923 if (!regcomp (&port_regex, port_name_pattern.c_str (), REG_EXTENDED|REG_NOSUB)) {
927 for (size_t i = 0; i < _ports.size (); ++i) {
928 CoreBackendPort* port = _ports[i];
929 if ((port->type () == type) && flags == (port->flags () & flags)) {
930 if (!use_regexp || !regexec (&port_regex, port->name ().c_str (), 0, NULL, 0)) {
931 port_names.push_back (port->name ());
937 regfree (&port_regex);
943 CoreAudioBackend::port_data_type (PortEngine::PortHandle port) const
945 if (!valid_port (port)) {
946 return DataType::NIL;
948 return static_cast<CoreBackendPort*>(port)->type ();
951 PortEngine::PortHandle
952 CoreAudioBackend::register_port (
953 const std::string& name,
954 ARDOUR::DataType type,
955 ARDOUR::PortFlags flags)
957 if (name.size () == 0) { return 0; }
958 if (flags & IsPhysical) { return 0; }
959 return add_port (_instance_name + ":" + name, type, flags);
962 PortEngine::PortHandle
963 CoreAudioBackend::add_port (
964 const std::string& name,
965 ARDOUR::DataType type,
966 ARDOUR::PortFlags flags)
968 assert(name.size ());
969 if (find_port (name)) {
970 PBD::warning << _("CoreAudioBackend::register_port: Port already exists:")
971 << " (" << name << ")" << endmsg;
974 CoreBackendPort* port = NULL;
976 case DataType::AUDIO:
977 port = new CoreAudioPort (*this, name, flags);
980 port = new CoreMidiPort (*this, name, flags);
983 PBD::error << _("CoreAudioBackend::register_port: Invalid Data Type.") << endmsg;
987 _ports.push_back (port);
993 CoreAudioBackend::unregister_port (PortEngine::PortHandle port_handle)
998 CoreBackendPort* port = static_cast<CoreBackendPort*>(port_handle);
999 std::vector<CoreBackendPort*>::iterator i = std::find (_ports.begin (), _ports.end (), static_cast<CoreBackendPort*>(port_handle));
1000 if (i == _ports.end ()) {
1001 PBD::warning << _("CoreAudioBackend::unregister_port: Failed to find port") << endmsg;
1004 disconnect_all(port_handle);
1010 CoreAudioBackend::register_system_audio_ports()
1014 const uint32_t a_ins = _n_inputs;
1015 const uint32_t a_out = _n_outputs;
1017 const uint32_t coreaudio_reported_input_latency = _pcmio->get_latency(name_to_id(_input_audio_device), true);
1018 const uint32_t coreaudio_reported_output_latency = _pcmio->get_latency(name_to_id(_output_audio_device), false);
1021 printf("COREAUDIO LATENCY: i:%d, o:%d\n",
1022 coreaudio_reported_input_latency,
1023 coreaudio_reported_output_latency);
1027 lr.min = lr.max = coreaudio_reported_input_latency + (_measure_latency ? 0 : _systemic_audio_input_latency);
1028 for (uint32_t i = 0; i < a_ins; ++i) {
1030 snprintf(tmp, sizeof(tmp), "system:capture_%d", i+1);
1031 PortHandle p = add_port(std::string(tmp), DataType::AUDIO, static_cast<PortFlags>(IsOutput | IsPhysical | IsTerminal));
1033 set_latency_range (p, false, lr);
1034 CoreBackendPort *cp = static_cast<CoreBackendPort*>(p);
1035 cp->set_pretty_name (_pcmio->cached_port_name(i, true));
1036 _system_inputs.push_back(cp);
1039 lr.min = lr.max = coreaudio_reported_output_latency + (_measure_latency ? 0 : _systemic_audio_output_latency);
1040 for (uint32_t i = 0; i < a_out; ++i) {
1042 snprintf(tmp, sizeof(tmp), "system:playback_%d", i+1);
1043 PortHandle p = add_port(std::string(tmp), DataType::AUDIO, static_cast<PortFlags>(IsInput | IsPhysical | IsTerminal));
1045 set_latency_range (p, true, lr);
1046 CoreBackendPort *cp = static_cast<CoreBackendPort*>(p);
1047 cp->set_pretty_name (_pcmio->cached_port_name(i, false));
1048 _system_outputs.push_back(cp);
1054 CoreAudioBackend::coremidi_rediscover()
1056 if (!_run) { return; }
1057 assert(_midi_driver_option == _("CoreMidi"));
1059 pthread_mutex_lock (&_process_callback_mutex);
1061 for (std::vector<CoreBackendPort*>::iterator it = _system_midi_out.begin (); it != _system_midi_out.end ();) {
1063 for (size_t i = 0; i < _midiio->n_midi_outputs(); ++i) {
1064 if ((*it)->name() == _midiio->port_id(i, false)) {
1073 printf("unregister MIDI Output: %s\n", (*it)->name().c_str());
1075 _port_change_flag = true;
1076 unregister_port((*it));
1077 it = _system_midi_out.erase(it);
1081 for (std::vector<CoreBackendPort*>::iterator it = _system_midi_in.begin (); it != _system_midi_in.end ();) {
1083 for (size_t i = 0; i < _midiio->n_midi_inputs(); ++i) {
1084 if ((*it)->name() == _midiio->port_id(i, true)) {
1093 printf("unregister MIDI Input: %s\n", (*it)->name().c_str());
1095 _port_change_flag = true;
1096 unregister_port((*it));
1097 it = _system_midi_in.erase(it);
1101 for (size_t i = 0; i < _midiio->n_midi_inputs(); ++i) {
1102 std::string name = _midiio->port_id(i, true);
1103 if (find_port_in(_system_midi_in, name)) {
1108 printf("register MIDI Input: %s\n", name.c_str());
1110 PortHandle p = add_port(name, DataType::MIDI, static_cast<PortFlags>(IsOutput | IsPhysical | IsTerminal));
1112 fprintf(stderr, "failed to register MIDI IN: %s\n", name.c_str());
1116 lr.min = lr.max = _samples_per_period; // TODO add per-port midi-systemic latency
1117 set_latency_range (p, false, lr);
1118 CoreBackendPort *pp = static_cast<CoreBackendPort*>(p);
1119 pp->set_pretty_name(_midiio->port_name(i, true));
1120 _system_midi_in.push_back(pp);
1121 _port_change_flag = true;
1124 for (size_t i = 0; i < _midiio->n_midi_outputs(); ++i) {
1125 std::string name = _midiio->port_id(i, false);
1126 if (find_port_in(_system_midi_out, name)) {
1131 printf("register MIDI OUT: %s\n", name.c_str());
1133 PortHandle p = add_port(name, DataType::MIDI, static_cast<PortFlags>(IsInput | IsPhysical | IsTerminal));
1135 fprintf(stderr, "failed to register MIDI OUT: %s\n", name.c_str());
1139 lr.min = lr.max = _samples_per_period; // TODO add per-port midi-systemic latency
1140 set_latency_range (p, false, lr);
1141 CoreBackendPort *pp = static_cast<CoreBackendPort*>(p);
1142 pp->set_pretty_name(_midiio->port_name(i, false));
1143 _system_midi_out.push_back(pp);
1144 _port_change_flag = true;
1148 assert(_system_midi_out.size() == _midiio->n_midi_outputs());
1149 assert(_system_midi_in.size() == _midiio->n_midi_inputs());
1151 pthread_mutex_unlock (&_process_callback_mutex);
1155 CoreAudioBackend::unregister_ports (bool system_only)
1158 _system_inputs.clear();
1159 _system_outputs.clear();
1160 _system_midi_in.clear();
1161 _system_midi_out.clear();
1162 while (i < _ports.size ()) {
1163 CoreBackendPort* port = _ports[i];
1164 if (! system_only || (port->is_physical () && port->is_terminal ())) {
1165 port->disconnect_all ();
1167 _ports.erase (_ports.begin() + i);
1175 CoreAudioBackend::connect (const std::string& src, const std::string& dst)
1177 CoreBackendPort* src_port = find_port (src);
1178 CoreBackendPort* dst_port = find_port (dst);
1181 PBD::warning << _("CoreAudioBackend::connect: Invalid Source port:")
1182 << " (" << src <<")" << endmsg;
1186 PBD::warning << _("CoreAudioBackend::connect: Invalid Destination port:")
1187 << " (" << dst <<")" << endmsg;
1190 return src_port->connect (dst_port);
1194 CoreAudioBackend::disconnect (const std::string& src, const std::string& dst)
1196 CoreBackendPort* src_port = find_port (src);
1197 CoreBackendPort* dst_port = find_port (dst);
1199 if (!src_port || !dst_port) {
1200 PBD::warning << _("CoreAudioBackend::disconnect: Invalid Port(s)") << endmsg;
1203 return src_port->disconnect (dst_port);
1207 CoreAudioBackend::connect (PortEngine::PortHandle src, const std::string& dst)
1209 CoreBackendPort* dst_port = find_port (dst);
1210 if (!valid_port (src)) {
1211 PBD::warning << _("CoreAudioBackend::connect: Invalid Source Port Handle") << endmsg;
1215 PBD::warning << _("CoreAudioBackend::connect: Invalid Destination Port")
1216 << " (" << dst << ")" << endmsg;
1219 return static_cast<CoreBackendPort*>(src)->connect (dst_port);
1223 CoreAudioBackend::disconnect (PortEngine::PortHandle src, const std::string& dst)
1225 CoreBackendPort* dst_port = find_port (dst);
1226 if (!valid_port (src) || !dst_port) {
1227 PBD::warning << _("CoreAudioBackend::disconnect: Invalid Port(s)") << endmsg;
1230 return static_cast<CoreBackendPort*>(src)->disconnect (dst_port);
1234 CoreAudioBackend::disconnect_all (PortEngine::PortHandle port)
1236 if (!valid_port (port)) {
1237 PBD::warning << _("CoreAudioBackend::disconnect_all: Invalid Port") << endmsg;
1240 static_cast<CoreBackendPort*>(port)->disconnect_all ();
1245 CoreAudioBackend::connected (PortEngine::PortHandle port, bool /* process_callback_safe*/)
1247 if (!valid_port (port)) {
1248 PBD::warning << _("CoreAudioBackend::disconnect_all: Invalid Port") << endmsg;
1251 return static_cast<CoreBackendPort*>(port)->is_connected ();
1255 CoreAudioBackend::connected_to (PortEngine::PortHandle src, const std::string& dst, bool /*process_callback_safe*/)
1257 CoreBackendPort* dst_port = find_port (dst);
1258 if (!valid_port (src) || !dst_port) {
1259 PBD::warning << _("CoreAudioBackend::connected_to: Invalid Port") << endmsg;
1262 return static_cast<CoreBackendPort*>(src)->is_connected (dst_port);
1266 CoreAudioBackend::physically_connected (PortEngine::PortHandle port, bool /*process_callback_safe*/)
1268 if (!valid_port (port)) {
1269 PBD::warning << _("CoreAudioBackend::physically_connected: Invalid Port") << endmsg;
1272 return static_cast<CoreBackendPort*>(port)->is_physically_connected ();
1276 CoreAudioBackend::get_connections (PortEngine::PortHandle port, std::vector<std::string>& names, bool /*process_callback_safe*/)
1278 if (!valid_port (port)) {
1279 PBD::warning << _("CoreAudioBackend::get_connections: Invalid Port") << endmsg;
1283 assert (0 == names.size ());
1285 const std::vector<CoreBackendPort*>& connected_ports = static_cast<CoreBackendPort*>(port)->get_connections ();
1287 for (std::vector<CoreBackendPort*>::const_iterator i = connected_ports.begin (); i != connected_ports.end (); ++i) {
1288 names.push_back ((*i)->name ());
1291 return (int)names.size ();
1296 CoreAudioBackend::midi_event_get (
1297 pframes_t& timestamp,
1298 size_t& size, uint8_t** buf, void* port_buffer,
1299 uint32_t event_index)
1301 if (!buf || !port_buffer) return -1;
1302 CoreMidiBuffer& source = * static_cast<CoreMidiBuffer*>(port_buffer);
1303 if (event_index >= source.size ()) {
1306 CoreMidiEvent * const event = source[event_index].get ();
1308 timestamp = event->timestamp ();
1309 size = event->size ();
1310 *buf = event->data ();
1315 CoreAudioBackend::midi_event_put (
1317 pframes_t timestamp,
1318 const uint8_t* buffer, size_t size)
1320 if (!buffer || !port_buffer) return -1;
1321 CoreMidiBuffer& dst = * static_cast<CoreMidiBuffer*>(port_buffer);
1322 if (dst.size () && (pframes_t)dst.back ()->timestamp () > timestamp) {
1324 // nevermind, ::get_buffer() sorts events
1325 fprintf (stderr, "CoreMidiBuffer: unordered event: %d > %d\n",
1326 (pframes_t)dst.back ()->timestamp (), timestamp);
1329 dst.push_back (boost::shared_ptr<CoreMidiEvent>(new CoreMidiEvent (timestamp, buffer, size)));
1334 CoreAudioBackend::get_midi_event_count (void* port_buffer)
1336 if (!port_buffer) return 0;
1337 return static_cast<CoreMidiBuffer*>(port_buffer)->size ();
1341 CoreAudioBackend::midi_clear (void* port_buffer)
1343 if (!port_buffer) return;
1344 CoreMidiBuffer * buf = static_cast<CoreMidiBuffer*>(port_buffer);
1352 CoreAudioBackend::can_monitor_input () const
1358 CoreAudioBackend::request_input_monitoring (PortEngine::PortHandle, bool)
1364 CoreAudioBackend::ensure_input_monitoring (PortEngine::PortHandle, bool)
1370 CoreAudioBackend::monitoring_input (PortEngine::PortHandle)
1375 /* Latency management */
1378 CoreAudioBackend::set_latency_range (PortEngine::PortHandle port, bool for_playback, LatencyRange latency_range)
1380 if (!valid_port (port)) {
1381 PBD::warning << _("CoreBackendPort::set_latency_range (): invalid port.") << endmsg;
1384 static_cast<CoreBackendPort*>(port)->set_latency_range (latency_range, for_playback);
1388 CoreAudioBackend::get_latency_range (PortEngine::PortHandle port, bool for_playback)
1391 if (!valid_port (port)) {
1392 PBD::warning << _("CoreBackendPort::get_latency_range (): invalid port.") << endmsg;
1397 CoreBackendPort* p = static_cast<CoreBackendPort*>(port);
1400 r = p->latency_range (for_playback);
1401 if (p->is_physical() && p->is_terminal() && p->type() == DataType::AUDIO) {
1402 if (p->is_input() && for_playback) {
1403 r.min += _samples_per_period;
1404 r.max += _samples_per_period;
1406 if (p->is_output() && !for_playback) {
1407 r.min += _samples_per_period;
1408 r.max += _samples_per_period;
1414 /* Discovering physical ports */
1417 CoreAudioBackend::port_is_physical (PortEngine::PortHandle port) const
1419 if (!valid_port (port)) {
1420 PBD::warning << _("CoreBackendPort::port_is_physical (): invalid port.") << endmsg;
1423 return static_cast<CoreBackendPort*>(port)->is_physical ();
1427 CoreAudioBackend::get_physical_outputs (DataType type, std::vector<std::string>& port_names)
1429 for (size_t i = 0; i < _ports.size (); ++i) {
1430 CoreBackendPort* port = _ports[i];
1431 if ((port->type () == type) && port->is_input () && port->is_physical ()) {
1432 port_names.push_back (port->name ());
1438 CoreAudioBackend::get_physical_inputs (DataType type, std::vector<std::string>& port_names)
1440 for (size_t i = 0; i < _ports.size (); ++i) {
1441 CoreBackendPort* port = _ports[i];
1442 if ((port->type () == type) && port->is_output () && port->is_physical ()) {
1443 port_names.push_back (port->name ());
1449 CoreAudioBackend::n_physical_outputs () const
1453 for (size_t i = 0; i < _ports.size (); ++i) {
1454 CoreBackendPort* port = _ports[i];
1455 if (port->is_output () && port->is_physical ()) {
1456 switch (port->type ()) {
1457 case DataType::AUDIO: ++n_audio; break;
1458 case DataType::MIDI: ++n_midi; break;
1464 cc.set (DataType::AUDIO, n_audio);
1465 cc.set (DataType::MIDI, n_midi);
1470 CoreAudioBackend::n_physical_inputs () const
1474 for (size_t i = 0; i < _ports.size (); ++i) {
1475 CoreBackendPort* port = _ports[i];
1476 if (port->is_input () && port->is_physical ()) {
1477 switch (port->type ()) {
1478 case DataType::AUDIO: ++n_audio; break;
1479 case DataType::MIDI: ++n_midi; break;
1485 cc.set (DataType::AUDIO, n_audio);
1486 cc.set (DataType::MIDI, n_midi);
1490 /* Getting access to the data buffer for a port */
1493 CoreAudioBackend::get_buffer (PortEngine::PortHandle port, pframes_t nframes)
1495 if (!port || !valid_port (port)) return NULL;
1496 return static_cast<CoreBackendPort*>(port)->get_buffer (nframes);
1500 CoreAudioBackend::pre_process ()
1502 bool connections_changed = false;
1503 bool ports_changed = false;
1504 if (!pthread_mutex_trylock (&_port_callback_mutex)) {
1505 if (_port_change_flag) {
1506 ports_changed = true;
1507 _port_change_flag = false;
1509 if (!_port_connection_queue.empty ()) {
1510 connections_changed = true;
1512 while (!_port_connection_queue.empty ()) {
1513 PortConnectData *c = _port_connection_queue.back ();
1514 manager.connect_callback (c->a, c->b, c->c);
1515 _port_connection_queue.pop_back ();
1518 pthread_mutex_unlock (&_port_callback_mutex);
1520 if (ports_changed) {
1521 manager.registration_callback();
1523 if (connections_changed) {
1524 manager.graph_order_callback();
1526 if (connections_changed || ports_changed) {
1527 engine.latency_callback(false);
1528 engine.latency_callback(true);
1533 CoreAudioBackend::freewheel_thread ()
1536 bool first_run = false;
1537 /* Freewheeling - use for export. The first call to
1538 * engine.process_callback() after engine.freewheel_callback will
1539 * if the first export cycle.
1540 * For reliable precise export timing, the calls need to be in sync.
1542 * Furthermore we need to make sure the registered process thread
1545 * _freewheeling = GUI thread state as set by ::freewheel()
1546 * _freewheel = in sync here (export thread)
1548 pthread_mutex_lock (&_freewheel_mutex);
1550 // check if we should run,
1551 if (_freewheeling != _freewheel) {
1552 if (!_freewheeling) {
1553 // prepare leaving freewheeling mode
1554 _freewheel = false; // first mark as disabled
1555 _reinit_thread_callback = true; // hand over _main_thread
1556 _freewheel_ack = false; // prepare next handshake
1557 _midiio->set_enabled(true);
1564 if (!_freewheel || !_freewheel_ack) {
1565 // wait for a change, we use a timed wait to
1566 // terminate early in case some error sets _run = 0
1569 gettimeofday (&tv, NULL);
1570 ts.tv_sec = tv.tv_sec + 3;
1572 pthread_cond_timedwait (&_freewheel_signal, &_freewheel_mutex, &ts);
1577 // tell the engine we're ready to GO.
1578 engine.freewheel_callback (_freewheeling);
1580 _main_thread = pthread_self();
1581 AudioEngine::thread_init_callback (this);
1582 _midiio->set_enabled(false);
1585 // process port updates first in every cycle.
1588 // prevent coreaudio device changes
1589 pthread_mutex_lock (&_process_callback_mutex);
1593 // clear input buffers
1594 for (std::vector<CoreBackendPort*>::const_iterator it = _system_inputs.begin (); it != _system_inputs.end (); ++it) {
1595 memset ((*it)->get_buffer (_samples_per_period), 0, _samples_per_period * sizeof (Sample));
1597 for (std::vector<CoreBackendPort*>::const_iterator it = _system_midi_in.begin (); it != _system_midi_in.end (); ++it) {
1598 static_cast<CoreMidiBuffer*>((*it)->get_buffer(0))->clear ();
1601 _last_process_start = 0;
1602 if (engine.process_callback (_samples_per_period)) {
1603 pthread_mutex_unlock (&_process_callback_mutex);
1607 pthread_mutex_unlock (&_process_callback_mutex);
1609 Glib::usleep (100); // don't hog cpu
1612 pthread_mutex_unlock (&_freewheel_mutex);
1617 // engine.process_callback() returner error
1618 engine.halted_callback("CoreAudio Freehweeling aborted.");
1623 #ifdef USE_MIDI_PARSER
1625 CoreAudioBackend::midi_process_byte (const uint8_t byte)
1633 midi_prepare_byte_event (byte);
1638 if (_status_byte == 0xf0) {
1639 midi_record_byte (byte);
1640 return midi_prepare_buffered_event ();
1643 _unbuffered_bytes = 0;
1644 _expected_bytes = 0;
1649 // Non-realtime status byte
1652 _unbuffered_bytes = 0;
1654 _status_byte = byte;
1655 switch (byte & 0xf0) {
1661 // Note On, Note Off, Aftertouch, Control Change, Pitch Wheel
1662 _expected_bytes = 3;
1666 // Program Change, Channel Pressure
1667 _expected_bytes = 2;
1673 _expected_bytes = 0;
1677 // MTC Quarter Frame, Song Select
1678 _expected_bytes = 2;
1682 _expected_bytes = 3;
1687 _expected_bytes = 0;
1692 midi_prepare_byte_event (byte);
1693 _expected_bytes = 0;
1698 midi_record_byte (byte);
1702 if (! _status_byte) {
1703 // Data bytes without a status will be discarded.
1705 _unbuffered_bytes++;
1708 if (! _total_bytes) {
1709 midi_record_byte (_status_byte);
1711 midi_record_byte(byte);
1712 return (_total_bytes == _expected_bytes) ? midi_prepare_buffered_event() : false;
1718 CoreAudioBackend::process_callback (const uint32_t n_samples, const uint64_t host_time)
1721 uint64_t clock1, clock2;
1725 if (_run && _freewheel && !_freewheel_ack) {
1726 // acknowledge freewheeling; hand-over thread ID
1727 pthread_mutex_lock (&_freewheel_mutex);
1728 if (_freewheel) _freewheel_ack = true;
1729 pthread_cond_signal (&_freewheel_signal);
1730 pthread_mutex_unlock (&_freewheel_mutex);
1733 if (!_run || _freewheel || _preinit) {
1734 // NB if we return 1, the output is
1735 // zeroed by the coreaudio callback
1739 if (_reinit_thread_callback || _main_thread != pthread_self()) {
1740 _reinit_thread_callback = false;
1741 _main_thread = pthread_self();
1742 AudioEngine::thread_init_callback (this);
1745 if (pthread_mutex_trylock (&_process_callback_mutex)) {
1746 // block while devices are added/removed
1748 printf("Xrun due to device change\n");
1753 /* port-connection change */
1756 // cycle-length in usec
1757 const double nominal_time = 1e6 * n_samples / _samplerate;
1759 clock1 = g_get_monotonic_time();
1763 for (std::vector<CoreBackendPort*>::const_iterator it = _system_midi_in.begin (); it != _system_midi_in.end (); ++it, ++i) {
1764 CoreMidiBuffer* mbuf = static_cast<CoreMidiBuffer*>((*it)->get_buffer(0));
1767 uint8_t data[128]; // matches CoreMidi's MIDIPacket
1768 size_t size = sizeof(data);
1769 while (_midiio->recv_event (i, nominal_time, time_ns, data, size)) {
1770 pframes_t time = floor((float) time_ns * _samplerate * 1e-9);
1771 assert (time < n_samples);
1772 #ifndef USE_MIDI_PARSER
1773 midi_event_put((void*)mbuf, time, data, size);
1775 assert (size < 128);// coremidi limit per packet
1776 bool first_time = true; // this would need to be rememberd per port.
1777 for (size_t mb = 0; mb < size; ++mb) {
1778 if (first_time && !(data[mb] & 0x80)) {
1779 /* expect a status byte at the beginning or every Packet.
1781 * This parser drops messages spanning multiple packets
1782 * (sysex > 127 bytes).
1783 * see also libs/backends/alsa/alsa_rawmidi.cc
1784 * which implements a complete parser per port without this limit.
1790 if (midi_process_byte (data[mb])) {
1791 midi_event_put ((void*)mbuf, time, _parser_buffer, _parser_bytes);
1795 size = sizeof(data);
1801 for (std::vector<CoreBackendPort*>::const_iterator it = _system_inputs.begin (); it != _system_inputs.end (); ++it, ++i) {
1802 _pcmio->get_capture_channel (i, (float*)((*it)->get_buffer(n_samples)), n_samples);
1805 /* clear output buffers */
1806 for (std::vector<CoreBackendPort*>::const_iterator it = _system_outputs.begin (); it != _system_outputs.end (); ++it) {
1807 memset ((*it)->get_buffer (n_samples), 0, n_samples * sizeof (Sample));
1810 _midiio->start_cycle();
1811 _last_process_start = host_time;
1813 if (engine.process_callback (n_samples)) {
1814 fprintf(stderr, "ENGINE PROCESS ERROR\n");
1815 //_pcmio->pcm_stop ();
1817 pthread_mutex_unlock (&_process_callback_mutex);
1822 for (std::vector<CoreBackendPort*>::const_iterator it = _system_midi_out.begin (); it != _system_midi_out.end (); ++it) {
1823 static_cast<CoreMidiPort*>(*it)->get_buffer(0);
1826 /* queue outgoing midi */
1828 for (std::vector<CoreBackendPort*>::const_iterator it = _system_midi_out.begin (); it != _system_midi_out.end (); ++it, ++i) {
1829 #if 0 // something's still b0rked with CoreMidiIo::send_events()
1830 const CoreMidiBuffer *src = static_cast<const CoreMidiPort*>(*it)->const_buffer();
1831 _midiio->send_events (i, nominal_time, (void*)src);
1833 const CoreMidiBuffer *src = static_cast<const CoreMidiPort*>(*it)->const_buffer();
1834 for (CoreMidiBuffer::const_iterator mit = src->begin (); mit != src->end (); ++mit) {
1835 _midiio->send_event (i, (*mit)->timestamp() / nominal_time, (*mit)->data(), (*mit)->size());
1840 /* write back audio */
1842 for (std::vector<CoreBackendPort*>::const_iterator it = _system_outputs.begin (); it != _system_outputs.end (); ++it, ++i) {
1843 _pcmio->set_playback_channel (i, (float const*)(*it)->get_buffer (n_samples), n_samples);
1846 _processed_samples += n_samples;
1848 /* calc DSP load. */
1849 clock2 = g_get_monotonic_time();
1850 const int64_t elapsed_time = clock2 - clock1;
1852 const float load = elapsed_time / (float) nominal_time;
1853 if (load > _dsp_load) {
1856 const float a = .2 * _samples_per_period / _samplerate;
1857 _dsp_load = _dsp_load + a * (load - _dsp_load) + 1e-12;
1860 pthread_mutex_unlock (&_process_callback_mutex);
1865 CoreAudioBackend::error_callback ()
1867 _pcmio->set_error_callback (NULL, NULL);
1868 _pcmio->set_sample_rate_callback (NULL, NULL);
1869 _pcmio->set_xrun_callback (NULL, NULL);
1870 _midiio->set_port_changed_callback(NULL, NULL);
1871 engine.halted_callback("CoreAudio Process aborted.");
1876 CoreAudioBackend::xrun_callback ()
1882 CoreAudioBackend::buffer_size_callback ()
1884 uint32_t bs = _pcmio->samples_per_period();
1885 if (bs == _samples_per_period) {
1888 _samples_per_period = bs;
1889 engine.buffer_size_change (_samples_per_period);
1893 CoreAudioBackend::sample_rate_callback ()
1897 printf("Samplerate change during initialization.\n");
1901 _pcmio->set_error_callback (NULL, NULL);
1902 _pcmio->set_sample_rate_callback (NULL, NULL);
1903 _pcmio->set_xrun_callback (NULL, NULL);
1904 _midiio->set_port_changed_callback(NULL, NULL);
1905 engine.halted_callback("Sample Rate Changed.");
1910 CoreAudioBackend::hw_changed_callback ()
1912 _reinit_thread_callback = true;
1913 engine.request_device_list_update();
1916 /******************************************************************************/
1918 static boost::shared_ptr<CoreAudioBackend> _instance;
1920 static boost::shared_ptr<AudioBackend> backend_factory (AudioEngine& e);
1921 static int instantiate (const std::string& arg1, const std::string& /* arg2 */);
1922 static int deinstantiate ();
1923 static bool already_configured ();
1924 static bool available ();
1926 static ARDOUR::AudioBackendInfo _descriptor = {
1935 static boost::shared_ptr<AudioBackend>
1936 backend_factory (AudioEngine& e)
1939 _instance.reset (new CoreAudioBackend (e, _descriptor));
1945 instantiate (const std::string& arg1, const std::string& /* arg2 */)
1947 s_instance_name = arg1;
1959 already_configured ()
1970 extern "C" ARDOURBACKEND_API ARDOUR::AudioBackendInfo* descriptor ()
1972 return &_descriptor;
1976 /******************************************************************************/
1977 CoreBackendPort::CoreBackendPort (CoreAudioBackend &b, const std::string& name, PortFlags flags)
1982 _capture_latency_range.min = 0;
1983 _capture_latency_range.max = 0;
1984 _playback_latency_range.min = 0;
1985 _playback_latency_range.max = 0;
1988 CoreBackendPort::~CoreBackendPort () {
1993 int CoreBackendPort::connect (CoreBackendPort *port)
1996 PBD::warning << _("CoreBackendPort::connect (): invalid (null) port") << endmsg;
2000 if (type () != port->type ()) {
2001 PBD::warning << _("CoreBackendPort::connect (): wrong port-type") << endmsg;
2005 if (is_output () && port->is_output ()) {
2006 PBD::warning << _("CoreBackendPort::connect (): cannot inter-connect output ports.") << endmsg;
2010 if (is_input () && port->is_input ()) {
2011 PBD::warning << _("CoreBackendPort::connect (): cannot inter-connect input ports.") << endmsg;
2016 PBD::warning << _("CoreBackendPort::connect (): cannot self-connect ports.") << endmsg;
2020 if (is_connected (port)) {
2021 #if 0 // don't bother to warn about this for now. just ignore it
2022 PBD::info << _("CoreBackendPort::connect (): ports are already connected:")
2023 << " (" << name () << ") -> (" << port->name () << ")"
2029 _connect (port, true);
2034 void CoreBackendPort::_connect (CoreBackendPort *port, bool callback)
2036 _connections.push_back (port);
2038 port->_connect (this, false);
2039 _osx_backend.port_connect_callback (name(), port->name(), true);
2043 int CoreBackendPort::disconnect (CoreBackendPort *port)
2046 PBD::warning << _("CoreBackendPort::disconnect (): invalid (null) port") << endmsg;
2050 if (!is_connected (port)) {
2051 PBD::warning << _("CoreBackendPort::disconnect (): ports are not connected:")
2052 << " (" << name () << ") -> (" << port->name () << ")"
2056 _disconnect (port, true);
2060 void CoreBackendPort::_disconnect (CoreBackendPort *port, bool callback)
2062 std::vector<CoreBackendPort*>::iterator it = std::find (_connections.begin (), _connections.end (), port);
2064 assert (it != _connections.end ());
2066 _connections.erase (it);
2069 port->_disconnect (this, false);
2070 _osx_backend.port_connect_callback (name(), port->name(), false);
2075 void CoreBackendPort::disconnect_all ()
2077 while (!_connections.empty ()) {
2078 _connections.back ()->_disconnect (this, false);
2079 _osx_backend.port_connect_callback (name(), _connections.back ()->name(), false);
2080 _connections.pop_back ();
2085 CoreBackendPort::is_connected (const CoreBackendPort *port) const
2087 return std::find (_connections.begin (), _connections.end (), port) != _connections.end ();
2090 bool CoreBackendPort::is_physically_connected () const
2092 for (std::vector<CoreBackendPort*>::const_iterator it = _connections.begin (); it != _connections.end (); ++it) {
2093 if ((*it)->is_physical ()) {
2100 /******************************************************************************/
2102 CoreAudioPort::CoreAudioPort (CoreAudioBackend &b, const std::string& name, PortFlags flags)
2103 : CoreBackendPort (b, name, flags)
2105 memset (_buffer, 0, sizeof (_buffer));
2106 mlock(_buffer, sizeof (_buffer));
2109 CoreAudioPort::~CoreAudioPort () { }
2111 void* CoreAudioPort::get_buffer (pframes_t n_samples)
2114 std::vector<CoreBackendPort*>::const_iterator it = get_connections ().begin ();
2115 if (it == get_connections ().end ()) {
2116 memset (_buffer, 0, n_samples * sizeof (Sample));
2118 CoreAudioPort const * source = static_cast<const CoreAudioPort*>(*it);
2119 assert (source && source->is_output ());
2120 memcpy (_buffer, source->const_buffer (), n_samples * sizeof (Sample));
2121 while (++it != get_connections ().end ()) {
2122 source = static_cast<const CoreAudioPort*>(*it);
2123 assert (source && source->is_output ());
2124 Sample* dst = buffer ();
2125 const Sample* src = source->const_buffer ();
2126 for (uint32_t s = 0; s < n_samples; ++s, ++dst, ++src) {
2136 CoreMidiPort::CoreMidiPort (CoreAudioBackend &b, const std::string& name, PortFlags flags)
2137 : CoreBackendPort (b, name, flags)
2141 _buffer[0].clear ();
2142 _buffer[1].clear ();
2145 CoreMidiPort::~CoreMidiPort () { }
2147 struct MidiEventSorter {
2148 bool operator() (const boost::shared_ptr<CoreMidiEvent>& a, const boost::shared_ptr<CoreMidiEvent>& b) {
2153 void* CoreMidiPort::get_buffer (pframes_t /* nframes */)
2156 (_buffer[_bufperiod]).clear ();
2157 for (std::vector<CoreBackendPort*>::const_iterator i = get_connections ().begin ();
2158 i != get_connections ().end ();
2160 const CoreMidiBuffer * src = static_cast<const CoreMidiPort*>(*i)->const_buffer ();
2161 for (CoreMidiBuffer::const_iterator it = src->begin (); it != src->end (); ++it) {
2162 (_buffer[_bufperiod]).push_back (boost::shared_ptr<CoreMidiEvent>(new CoreMidiEvent (**it)));
2165 std::sort ((_buffer[_bufperiod]).begin (), (_buffer[_bufperiod]).end (), MidiEventSorter());
2167 return &(_buffer[_bufperiod]);
2170 CoreMidiEvent::CoreMidiEvent (const pframes_t timestamp, const uint8_t* data, size_t size)
2172 , _timestamp (timestamp)
2176 _data = (uint8_t*) malloc (size);
2177 memcpy (_data, data, size);
2181 CoreMidiEvent::CoreMidiEvent (const CoreMidiEvent& other)
2182 : _size (other.size ())
2183 , _timestamp (other.timestamp ())
2186 if (other.size () && other.const_data ()) {
2187 _data = (uint8_t*) malloc (other.size ());
2188 memcpy (_data, other.const_data (), other.size ());
2192 CoreMidiEvent::~CoreMidiEvent () {